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headers already sent by (output started at [ROOT]/includes/functions.php:3843)[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4740: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4741: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4742: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3843)Fish Tank Forum • View topic - Filter advice please?

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The Fish Tank Forum is no longer allowing posting of any kind or new members to register.All visitors can still join the group discussion which has been moved to Facebook.
Fish Tank Forum will be remaining here for reference purposes only.

I just want to say thank you to everyone who took part in the forum over the years and I hope to see you all on our Facebook group.

I'm considering buying a wet/dry filter set up for my 90 gallon (340 liter) tank and I came across what seams like a good gently used one but it was being used on a 200 gallon tank and has a pump rated at 3100 liters (or just over 800 gallons) per hour.

Is there such a thing as turning the water over too many times in an hour? or too fast?

I'm assuming the larger the volume the stronger the current?

Is that going to be too much current? Do they even create current or "nozzle pressure" like a canister does on exit?